Workbench



FIG. 1 is a top left front perspective of a workbench showing our new design;

FIG. 2 is a right side elevational view, the left side being identical thereto;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a workbench, as shown and described. 